3,5,7-trihydroxy-2-(2-methoxy-phenyl)-chromen-4-one, also known as quercetin-3-O-methyl ether or tamarixetin, is a naturally occurring flavonoid compound found in various plants, including Ginkgo biloba and some species of the Tamarix genus. This chemical is characterized by its unique structure, featuring a chromen-4-one core with three hydroxyl groups at positions 3, 5, and 7, a methoxy group at position 2 on the phenyl ring, and a hydroxyl group at position 3 on the chromen-4-one core. Tamarixetin exhibits antioxidant, anti-inflammatory, and anticancer properties, making it a subject of interest in the field of natural product chemistry and pharmacology. Its potential health benefits and therapeutic applications are currently being explored through ongoing research.

520-13-8

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Basic information
1. Product Name: 3,5,7-trihydroxy-2-(2-methoxy-phenyl)-chromen-4-one
2. Synonyms:
3. CAS NO:520-13-8
4. Molecular Formula:
5. Molecular Weight: 300.268
6. EINECS: N/A
7. Product Categories: N/A
Chemical Properties
1. Melting Point: N/A
2. Boiling Point: N/A
3. Flash Point: N/A
4. Appearance: N/A
5. Density: N/A
6. Refractive Index: N/A
7. Storage Temp.: N/A
8. Solubility: N/A
9. CAS DataBase Reference: 3,5,7-trihydroxy-2-(2-methoxy-phenyl)-chromen-4-one(CAS DataBase Reference)
10. NIST Chemistry Reference: 3,5,7-trihydroxy-2-(2-methoxy-phenyl)-chromen-4-one(520-13-8)
11. EPA Substance Registry System: 3,5,7-trihydroxy-2-(2-methoxy-phenyl)-chromen-4-one(520-13-8)
Safety Data
1. Hazard Codes: N/A
2. Statements: N/A
3. Safety Statements: N/A
4. WGK Germany:
5. RTECS:
6. HazardClass: N/A
7. PackingGroup: N/A
8. Hazardous Substances Data: 520-13-8(Hazardous Substances Data)

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Check Digit Verification of cas no

The CAS Registry Mumber 520-13-8 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 5,2 and 0 respectively; the second part has 2 digits, 1 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 520-13:
(5*5)+(4*2)+(3*0)+(2*1)+(1*3)=38
38 % 10 = 8
So 520-13-8 is a valid CAS Registry Number.

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